[  520.381240] bond0: (slave eth0): making interface the new active one
[  520.381318] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.557748] bond0: (slave eth0): Releasing backup interface
[  524.637327] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.790194] bond0: (slave eth0): Releasing backup interface
[  528.834228] bond0 (unregistering): Released all slaves